TM 9-4520-257-12&P 0004 00 0004 00-2 Table 2. H-45 Type II (Liquid Fuel) Heater Controls and Indicators KeyItemFuel modeFunction1 Fuel flow control valve Liquid Regulates the amount of fuel flowing to the burner. 2 Fuel selector control Liquid Sets the fuel flow control for ambient temperature and fuel type. This is done by pulling up the knob and rotating it to the proper fuel type and/or temperature setting. If the fuel type is not known, refer to the WP0005 section titled Starting The H45 Type II Heater when the fuel type is not known. The selector control has the following settings: JP4-8/GAS (ABOVE 25oF) Used for JP4* through JP-8 fuels in ambient temperatures above 25oF (-32oC). Used for gasoline* fuel at any temperature. JP4-8 (BELOW -25oF) Used for JP4*-8 fuel in ambient temperatures below -25F (-32C). DIESEL Used for diesel fuel at any temperature. 3 Flow adjustment knob Liquid Controls the fuel flow from the float chamber to the burner. 4 Fuel on/off control Liquid Controls the fuel flow from fuel supply to fuel flow control valve. * JP4 and gasoline are to be used only under emergency conditions. 1 4 2 3